US 12,435,733 B2
Heat exchanger with curved core area and intended for use with an agricultural pumper truck
Ryan S. Tietz, Mounds, OK (US); and Vinay Kumar Dandamudi, Tulsa, OK (US)
Assigned to Air Power Systems Co., LLC, Tulsa, OK (US)
Filed by Air Power Systems Co., LLC, Tulsa, OK (US)
Filed on Apr. 8, 2024, as Appl. No. 18/629,566.
Application 18/629,566 is a continuation in part of application No. 17/937,943, filed on Oct. 4, 2022, granted, now 12,025,379.
Claims priority of provisional application 63/251,975, filed on Oct. 4, 2021.
Prior Publication US 2024/0255003 A1, Aug. 1, 2024
Int. Cl. F28D 1/047 (2006.01); F04D 17/08 (2006.01); F04D 29/42 (2006.01)
CPC F04D 29/4226 (2013.01) [F04D 17/08 (2013.01); F28D 1/047 (2013.01); F05D 2260/22141 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A hydraulic reservoir cooler adapted for use with a hydraulic fluid tank, the hydraulic reservoir cooler comprising:
a vented front cover;
a backward curve centrifugal fan located rearward of the vented front cover, the backward curve centrifugal fan having a center point “c” and a radius “r” and arranged to provide substantially horizontal air flow through the vented front cover; and
a core area including fins and a manifold adapted for fluid communication with the hydraulic fluid tank, the core area being located between the vented front cover and the backward curve centrifugal fan; the core area further including:
a straight vertical portion extending in height less than an uppermost upper end of the backward curve centrifugal fan;
a straight horizontal portion located above the uppermost end of the backward curve centrifugal fan; and
an intermediate portion connecting the straight vertical and horizontal portions.